How to include webm Files in Viewer Next/Previous List?

Hello,

I'm trying to include .webm files while using the "Next Picture" functionality of the Directory Opus Viewer. The viewer can properly display the files and it'll include the file with which I opened the viewer in the list, but it'll ignore every other .webm file in the same directory.
Is there any way to configure the files it'll include in the next/previous picture list?

I don't think there is currently. (At least, not without writing a viewer plugin which told Opus they are images.)

We're planning an overhaul of how the viewer handles video, so I'll add this to the list.